Design of metasurface radome with large angle stability in Ku-band

Ku-band antennas are playing an increasingly important role in satellite communication systems, and microwave radomes exhibiting bandpass behavior are highly desirable for antenna systems. In this paper, we propose a double-layer metasurface radome which can show high transmission characteristics at large angular incidence in Ku-band, allowing the antenna to maintain its good performance. The joint simulation results of this radome and antenna show that such metasurface exhibits insertion loss < 1dB within $\pm 50^{\circ}$ oblique angle incidence in the $16\sim 17$ GHz.